In a semiconductor, current conduction is due to

The current due to electron flow in conduction band is the hole current in valence band.

A

Equal to

B

Less than

C

Greater than

D

Any of the above

The impurity level in an extrinsic semiconductor is about of pure semiconductor.

A

10 atoms for 108 atoms

B

1 atom for 108 atoms

C

1 atom for 104 atoms

D

1 atom for 100 atoms

As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor ___________

A

Remains the same

B

Increases

C

Decreases

D

None of the above

নিম্নের কোনটি p-টাইপ অর্ধপরিবাহীতে n-টাইপ অর্ধপরিবাহীর তুলনায় বেশি আছে? (Which of the following does a p-type semiconductor have more compared to an n-type semiconductor-)

A

মোট ধনাত্মক আধান (total positive charge)

B

মোট আধান (total charge)

C

ইলেকট্রন ঘনত্ব (density of electrons)

D

হোল ঘনত্ব (density of holes)

At room temperature the current in an intrinsic semiconductor is due to

A

Holes

B

Electrons

C

Ions

D

Holes and electrons

Heat conduction in gases is due to

A

Elastic impact of molecules

B

Movement of electrons

C

EM Waves

D

Mixing of gases

The conduction of electricity, in semiconductors, takes place due to movement of

A

Positive ions only

B

Negative ions only

C

Positive and negative ions

D

Electrons and holes

In conductors conduction of electricity takes place due to movement of

A

Electrons only

B

Positive ions only

C

Negative ions only

D

Positive and negative ions

A person travels I2 km due north, then 15 km due east after that I5km due west and then 18 km due south. How far B she from the starting point?

A

6km

B

10km

C

33km

D

60km

সুপরিবাহী পদার্থে Valence Band এবং conduction band-

A

আলাদা থাকে

B

ওভারল্যাপ থাকে

C

অনেক দূরে থাকে

D

কোনটিই নয়

In a semiconductor, current conduction is due to

Related Questions